Hexatic Order and Surface Ripples in Spherical Geometries

Details Hexatic Order and Surface Ripples in Spherical Geometries Hexatic Order and Surface Ripples in Spherical Geometries

2001-04-03

arxiv.org/abs/cond-mat/0104062v2

Physics

Condensed Matter

Soft Condensed Matter

5 pages, 1 figure; revised version; to appear in Phys. Rev. Lett

Scientific paper

10.1103/PhysRevLett.87.125703

In flat geometries, two dimensional hexatic order has only a minor effect on capillary waves on a liquid substrate and on undulation modes in lipid bilayers. However, extended bond orientational order alters the long wavelength spectrum of these ripples in spherical geometries. We calculate this frequency shift and suggest that it might be detectable in lipid bilayer vesicles, at the surface of liquid metals and in multielectron bubbles in liquid helium at low temperatures. Hexatic order also leads to a shift in the threshold for the fission instability induced in the later two systems by an excess of electric charge.

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